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US 2025/0096240 A1Published application
Electrode for lithium secondary battery
AssigneeLG Energy Solution, Ltd.
InventorsJihee YOON, Taek Soo LEE, Sang Hoon CHOY, Cheolwoo KIM
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Abstract
Provided is an electrode for a lithium secondary battery having excellent resistance and output characteristics while achieving high capacity characteristics due to a high active material content.
Claims12
An electrode for a lithium secondary battery, the electrode comprising a current collector;
- a first active material layer formed on the current collector;
- and a second active material layer formed on the first active material layer,
- wherein the first and second active material layers include active materials comprising an active material A having a D50 particle size of 7 μm to 15 μm and an active material B having a D50 particle size of 2 μm or more to less than 7 μm,
- the first and second active material layers are different from each other in term of a weight ratio of the active material A:the active material B, and
- a ratio of the active material A in the second active material layer is higher than that in the first active material layer, and
- the weight ratio of the active material A:the active material B in the second active material layer is higher than 70:30 and 95:5 or less.
3 more elements
Dependencies are inferred from the claim text.